baber/WOPTO huggingface dataset:
Patent GB-1379862-A (GB)
Title: Means and method for achieving an optimum acid strength for an alkylation unit
IPC: C07C1/00
Filed: 1973-01-15
Abstract: 1379862 Controlling an alkylation unit TEXACO DEVELOPMENT CORP 15 Jan 1973 [24 Feb 1972] 1963/73 Heading B1X [Also in Division C5] Apparatus is provided for controlling the strength of a reaction acid in an alkylation unit in which isoparaffin and olefin fed through line 6 are contacted in 4 with the reaction acid, and a hydrocarbon product separated from the acid in settler 12 is fed to debutanizer tower 13 giving alkylate as bottom product in line 15, while part of the acid from settler 12 is recycled to contactor 4 by lines 16, 7, fresh acid being fed in when necessary by line 17, the control apparatus comprising means 42 or 42A for sensing the flow rate of the acid or of the bottom products, means 36 for sensing the concentrations of different constituents of olefin feed, means 43 for sensing the concentration of alkylate in the bottom products, means 22 for sensing the strength A, of the reaction acid, means for providing signals responsive to these, sensing means, means for providing signals corresponding to the economic values V A  V OCT  of the acid and of the octain rating of the alkylate, control signal means for receiving signals from the sensing means and the economic value signal means and calculating an optimum profit control signal E 16 , and means for controlling the strength of the reaction acid in accordance with the control signal to achieve a reaction acid strength associated with optimum profit, as by controlling the flow rate of discharge acid and consequently the feed of fresh acid to the settler 4. In the embodiment described, the optimum control system 40 determines the optimum acid strength using signals corresponding to actual acid strength (E 11 ), the discharge acid and bottom products flow rates (E 14 , E 15 ), the economic values V A , V OCT , the concentration of alkylate in the bottom product stream (E 17 ) and the propylene/total olefin ratio (M) in the feed (E 12 ). Equations are given relating the profit position and the "octane added factor" for given acid strength, and defining the "octane added factor" in terms related to acid strength and "M" values. Control system 40 operates to calculate the differential profit for acid strength A 2 =(A 1 +D) (profit position p 2 ), A 3 =(A 1 -D) (profit position p 3 ) as compared with that for measured acid strength A 1  (position p 1 ). Differential profit and acid strength are related by equation p=Q+RA +SA<SP>2</SP> or equation p=Q+RA. R and S are calculated from the p and A values, then (a) if S is found to be negative, the optimum acid strength A 0  is calculated from the equation A 0 =-R/2S obtained by differentiating the quadratic equation and setting dP/dA=O, or alternatively (b) if S is positive or substantially zero, the control signal is determined by comparing p 2  and p 1  and p 3  and p 1 .
Patent GB-972692-A (GB)
Title: Improvements in or relating to bolt-action firearms
Inventor: VESELY JOSEF
IPC: F41A15/14
Filed: 1960-01-20
Abstract: 972,692. Small arms. BIRMINGHAM SMALL ARMS CO. Ltd. March 13, 1961 [Jan. 20, 1960], No. 2008/60. Heading F3C. In a semi-automatic firearm as described in Specification 972,691, the bolt 2 is formed with a longitudinal bore 9 and a radial bore 10 for housing an extractor 12 and a leaf spring 17 urging the extractor inwardly, both being retained against longitudinal displacement by engagement of portions 14 and 18 within the bore 10. Depression of the spring portion 18 within the bore 10 permits its removal and the removal of the extractor 12.
Patent GB-214004-A (GB)
Title: Improvements in carburettors
IPC: F02M9/02
Filed: 1923-01-23
Abstract: 214,004. Treen, R. J. Jan. 23, 1923. Spray carburettors.-The casing comprises two intersecting passages, 1 containing a spring- loaded piston type throttle valve 2, and 4 containing a sliding tubular spring-loaded valve 8, a rounded projection 21 on which contacts with a cam surface 20 on the throttle valve. The passage 4 is connected to the induction pipe at 3 and at its other end has peripheral air inlets 22 controlled by the valve 8 and other air inlets 26 controlled by a hit-and-miss valve 24. The throttle valve is actuated manually by a lever 15. 16 and rod 18 and its movement determines the position of the valve 8 which, in addition to controlling the air, may control fuel also or mav control fuel alone. For this purpose the nozzle 6 may be flush with the casing and the slot 23 of the valve 8 may slide over it. An additional air inlet 28 may be provided towards the engine side of the valve. Instead of the valve 8 moving automatically in accordance with the movement of the throttle valve, the valve 8 may be the manually actuated valve. The valves are so actuated that a rich mixture is obtained at small and full throttle openings and a weaker mixture at intermediate openings.
Patent GB-850780-A (GB)
Title: Film transport mechanism
IPC: G03B17/30
Filed: 1957-01-21
Abstract: 850,780. Photographic film holders. GULF RESEARCH & DEVELOPMENT CO. Jan. 21, 1957 [Jan. 24, 1956], No. 2064/57. Divided out of 850,779. Class 98(1) Apparatus for feeding a predetermined length of film from a feed roll to a take-up roll comprises a motor coupled to the take-up roll through a free-wheel which drives only in the take up direction and, through a slipping clutch, to the feed roll in such a direction as to rewind the film when the motor is reversed, the motor being controlled so that after running forwardly to wind slightly more than the required length of film, it is reversed and the consequent reverse film movement arrested at precisely the required feed position. The arresting mechanism may be a pawl and ratchet. In the form shown a film is fed from a roll 27 to a roll 28 over a roller 30, mto frictional contact with which it is held by a roller 36. A motor 4 is coupled to the roll 28 through a freewheel 12, which transmits drive only in the direction of the arrow, and also, through reduction gearing 8, 9, 10 and a friction clutch 14, to the roll 27. The roller 30 is coupled through gearing 15, 16 to a ratchet 17 which, after the feed of each length of film, lifts the pawl 18 against the spring 19 to operate the switch 23 through a connection 20. The switch 23 controls the operation of the motor through the circuit shown in Fig. 3. A film feeding sequence is initiated by closing a push button 50 which energises a relay X1G which is then held on by a contact 51 in series with the contact 52 of a relay X4G. At the same time contacts 53 are operated to connect the motor 4 to the battery 56 through a speed adjusting resistance 54. As the motor rotates it lifts the pawl 18 to move the switch 23 from the lower position, shown, to the upper position in which a relay X3G is energised to close a contact 55 and energise a further relay X4G, the contact 52 of which breaks the circuit through the holding contact 51 of the relay XIG which is opened to return the contacts to the position, shown, where the motor circuit is completed, through the contact 52, to provide a reverse direction of rotation so long as the relay X4G is energised. As the .pawl 18 drops from one tooth of the ratchet to the next the switch 23 returns to its lower position. The energisation of the relay X4G is then only retained for so long as the relay X3G, which is of the slow release type, takes to release. The delay is chosen so that sufficient reverse winding has taken place to drive the flank of a ratchet tooth firmly against the pawl. The amount of film fed at each operation may be changed by exchanging the pawl for one with a different number of teeth. An increased feed mav also be obtained by holding the button 50 depressed.
Patent GB-1197413-A (GB)
Title: Improvements in Screw Threaded Assemblies
IPC: F16B37/00
Filed: 1969-01-14
Abstract: 1,197,413. Fastening device; rollers. ATLAS COPCO A.B. 14 Jan., 1969 [19 Jan., 1968], No. 2144/69. Headings F2H and F2U. A screw threaded assembly comprises a first part, a second part to be fixed to the first, an elongated member fixed to the first part at one end and carrying a sleeve at the other to transmit tensioning force to the elongate member, means for locking the sleeve to the second part against relative rotation, and a nut threaded on the sleeve for creating tension in the elongated member. In Fig. 5 sleeve 18 is splined into second part 27. The first and second parts 30, 27 are keyed together so that if the bolt 19 is tensioned by nut 23 only, there is no torsional strain produced in the bolt. In Fig. 2 where a wheel or a synchronizing gear 14 is fastened to the rotor 15 of a screw rotor compressor, the second part is a washer 20 which is either splined on to the sleeve 18 as a force fit, or connected thereto by means of a web 21 which is deformed axially during tensioning of the bolts. Either the washer 20 or the sleeve 18 has counter holding tool recesses so that by holding the sleeve against rotation during tensioning of the bolt by turning nut 23, torsional strain in the bolt is avoided. The washer 20 may be fastened to one of the parts to be joined, e.g. by key 29 (Fig. 3a, not shown).
Patent GB-524096-A (GB)
Title: Steering gear for road rollers
IPC: E01C19/26
Filed: 1939-01-21
Abstract: 524,096. Steering road rollers. GREEN & SON, Ltd., T., KNIGHT, F. B., and OWEN, W. A. Jan. 21, 1939, No. 2177. [Class 79 (v)] The steering roll of a road roller is steered by a fluid-pressure ram and cylinder mechanism, either the cylinder or the ram being pivoted to the roller chassis on a vertical pivot parallel to the steering pivot of the roll. In the construction shown the steering roll 2 is mounted in a frame 29 connected by longitudinal pivots 30 to a steering fork 3 having a vertical pivot shaft 4 in the main frame 1. The fork 3 is steered by means of an arm 5 thereon connected by a rod 7 to a piston 9 working in a double-acting fluidpressure cylinder 8 connected by vertical pivots 16, 17 to cross beams 12, 13 of the main frame plates 14, 15. In the case shown of a Dieselengine roller oil is used in the cylinder 8 and is supplied to the cylinder by a pump unit U connected through a steering valve V and pipes 10, 11 to the cylinder. When a hand-wheel W is rotated in one direction or the other to control the valve V one end of the cylinder is connected to pressure and the other to exhaust, and the roll 2 is steered accordingly. Independent handoperated steering gear is provided and comprises a hand-wheel 24 on a shaft 23 having a worm gearing with a worm-wheel 21 loosely mounted on a shaft 20 geared at 19, 18 to the steering pivot shaft 4. When the hand gear is to be used a cover-plate 28 is removed and the worm wheel 21 is fixed to the shaft 20 by a readily-removable key 26. In the case of a steam roller boiler steam is used in the steering cylinder 8.
Patent GB-904846-A (GB)
Title: Improvements relating to temperature-indicating devices
Inventor: NICOL DONALD LAURENCE
IPC: G01K13/00
Filed: 1960-01-21
Abstract: 904,846. Temperature Indicators. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 14, 1961 [Jan. 21, 1960; Oct. 15, 1960], Nos. 2188/60 and 35426/60. Class 97 (3). A temperature-indicating device comprises a closed transparent P.V.C. tube 15 divided into compartments by a separator 12 which melts when the temperature of the device rises to a given value, thus allowing the liquids 11, 14 to mix and produce a substantially permanent coloration, dissimilar from any coloration when the liquids are separated, the separator being insoluble in and non- reactive with the liquids which it separates. Preferably a flocculent precipitate is formed when the two liquids mix so as to prevent leaks through the separator as well as to be clearly visible. The P.V.C. tube 15 has a glass lining 10 with which the separator makes good contact. A ball-bearing or glass bead 13 is included in the separator 12 to ensure mixing of the liquids 11, 14 when the separator melts. A comparison spot of the same colour as the liquids after mixing is provided at 17. If several temperatures are to be indicated several different separators arranged in order of their melting-points are used with one liquid in the first compartment and the other liquid in the other compartments, the extent of the colouring then indicating how high the temperature has risen. Ethyl alcohol and/or ethylene glycol may be added to the liquids as an " antifreeze " if the temperatures to be indicated are below or near ice point. Various examples of combinations of liquids and the resulting colour and possible separators with their melting-points are given.
Patent GB-1189591-A (GB)
Title: Improvements in or relating to Signal Transmitting Means for a Hydruaulic Regulator.
IPC: F15B11/02
Filed: 1968-01-15
Abstract: 1,189,591. Fluid-pressure servomotor systems. KALLE-REGULATORER A.B. Jan. 15, 1968 [Jan.27, 1967], No.2194/68. Heading G3P. In a signal transmitting means for a hydraulic regulator in which a servo-cylinder 28 is controlled by varying pressure differences between two gas suction conduits 10, 10<SP>1</SP> and the inlets of the conduits are throttled by rigidly connected valves 37, 37<SP>1</SP>, each suction conduit is connected to a chamber 44 through a branch conduit containing a check valve 50 and has a flexible portion 47 at its inlet and carried by a movable wall 45 of the chamber 44 which is connected to atmosphere through a narrow leakage opening 53 whereby movement of the valve 37 towards the inlet end in response to a rise in signal pressure from a unit 41 causes the wall 45 to oscillate and the servocylinder to produce an intermittent output movement. The fall in pressure in the conduit 10 due to the approach of the valve 37 opens the check valve 50 to contract the chamber 44 and displace the inlet end 47, restoring the pressure in the conduit 10 and closing the valve 50. The chamber 44 now gradually returns to its original position as air leaks into it through the opening 53 and the process is repeated until the signal pressure is equal to a reference pressure provided by a unit 39. If the signal pressure falls, a valve 37<SP>1</SP> is moved by the reference pressure towards the inlet end 47<SP>1</SP> of the suction conduit 10<SP>1</SP> to reverse the output movement from the servo-cylinder. When the end of the suction conduit 10 is throttled, a gear pump 7 draws oil from a reservoir 9 and supplies it through a valve 20 to the left end of the servo-cylinder 28 and to a piston 23<SP>1</SP> to lift valves 25<SP>1</SP> and 20<SP>1</SP>, providing communication between the right end of the servo-cylinder and an exhaust port 27<SP>1</SP>. Throttling of the conduit 10<SP>1</SP> due to a fall in signal pressure causes the pump 71 to supply oil to the right end of the servo-cylinder and to lift the valves 25 and 20. Needle valves 51, 54 enable the periods of movement and the intervals between movement of the servo-cylinder to be adjusted while valves 56, 56<SP>1</SP> provide manual control of the output movement. A double valve 58 may be opened to make the regulator inoperative.
Patent GB-122907-A (GB)
Title: An Improved Device for obtaining Rotary Motion from Reciprocatory Motion.
Inventor: THOMAS GEORGE HOLT
IPC: F01L1/32
Filed: 1918-02-07
Abstract: 122,907. Thomas, G. H., and Hucks, B. C. Feb. 7, 1918. Rotating to ensure even wear.-The valve a of an internal-combustion engine is caused to rotate step-by-step, when reciprocated, by means of helical springs j, k carried by the spindle e. The ends j<1>, k<1> of the springs j, k work in parallel inclined or helical slots j<2>, k<2> in the fixed sleeve m, and in each direction of motion of the spindle one spring is slackened, and the other is tightened on the spindle and rotates it one step. The springs j, k may be coiled in the same direction and the coils of one may alternate with those of the other.
Patent GB-1503641-A (GB)
Title: Locking devices for moulds
IPC: B29C33/20
Filed: 1977-01-20
Abstract: 1503641 Mould clamp INDUSTRIES ET TECHNIQUES D'AMEUBLEMENT 20 Jan 1977 [3 March 1976] 02251/77 Heading B5A [Also in Division E2] A mould locking device for foam casting comprises a support 10 fixed to a mould half 2 and connected to a movable plate 9 carrying a hook 7 by means of a bellows 12 which urges the plate 9 and the support 10 apart when pressurized by air from an inlet 11 through the plate 9 to lock the hook under the rim 4 of the other mould half, Fig. 3 (not shown), a spring 17 extending between the hook 7 and the fixed support 10 to urge the plate 9 towards the support 10, and means 14-16 to limit the movement of the plate 9 towards the support 10 by the spring 17 when the pressure is removed from the bellows 12 so that the hook is rotated to the position shown in Fig. 1. Movement is limited by a pin 16 on the hook 7 reaching the lower end of a slot 15 on an extension 14 of the support 10.
Patent GB-193248-A (GB)
Title: Improvements in gland packing rings
IPC: F16J15/20
Filed: 1922-01-25
Abstract: 193,248. Spencer, A., and Glascodine, R. T. Jan. 25, 1922. Packing, non-metallic; cupleather packing.-In packing for vacuum or compressed-air brakes of the type comprising an indiarubber ring of channel section with one or more projections 2 bearing on the piston-rod, the projection 2 is formed with a lip 3, which is pressed on to the rod by the atmospheric pressure or compressed air. The india-rubber of the lip 3 may be of a different consistency to that of the body of the ring. A lip may extend from the other side of the projection 2 also.
Patent GB-1425441-A (GB)
Title: Method of coagulating polymer latices
IPC: C08J3/16
Filed: 1974-01-18
Abstract: 1425441 Coagulation of styrene and butadiene polymer latexes GOODYEAR TIRE & RUBBER CO 18 Jan 1974 [15 Feb 1973] 02373/74 Heading C3P Latices of polymers selected from polystyrene, polybutadiene and copolymers of styrene and butadiene, which have been prepared using an alkali metal salt of a fatty acid and/or an alkali metal salt of a disproportionated rosin acid as emulsifier, are coagulated by a process which comprises heating a coagulant solution at 45 to 95 C. before introducing the latex to this solution, and adjusting the equivalents of metal ion of the coagulating salt to from 0À16 to 0À56 equivalents per equivalent of emulsifier, and adding enough acid selected from H 2 SO 4 , HCl, CH 3 COOH, HNO 3  or H 3 PO 4  to maintain a final pH of less than 6. The coagulating salt may be FeCl 3 , Fe(NO 3 ) 3 , Fe 2 (SO 4 ) 3 , AlCl 3 , Al(NO 3 ) 3  or Al 2 (SO 4 ) 3 , or any other trivalent metal salt which is water soluble.
Patent GB-141670-A (GB)
Title: An improved apparatus for adjusting and fixing sliding parts temporarily in the adjusted position
IPC: F21V21/22
Filed: 1920-01-26
Abstract: 141,670. Calmer & Bender, and Hersch, H. April 15, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Grips, friction, for supporting lamps. In a tube a secured to the ceiling slides an expanding sleeve b within which is a ball race c so arranged that the balls can be forced outwards by a conical body d so as to expand the sleeve and clamp it against the inside of the tube a. This is done when by a hollow rod e the lamp is suspended from the conical body d. When it is de. sired to raise or lower the lamp a plate g connected by rods f with the sleeve b is moved against the action of a spring towards a disk i, thus freeing the balls and allowing the sleeve b to contract, whereupon the rod e may be shifted freely up or down. In a modification, a similar arrangement is described for use with a standard lamp.
Patent GB-305027-A (GB)
Title: Process for the removal of organic sulphur compounds from gases
IPC: C01B3/58
Filed: 1929-01-25
Abstract: 305,027. Lusby, O. W. Jan. 28, 1928, [Convention date]. Materials for purifying.-Organic sulphur compounds are removed by subjecting the gas to the action of a catalyst containing one or more metals of the sixth group or their oxides, or hydroxides, with one or more metals of the first to fifth groups or their oxides or hydroxides, the process being carried out at a temperature below the melting point of any component of the catalyst, and at normal pressure. Temperatures between 200 and 500‹ C. are preferably employed. The organic sulphur compounds are converted into hydrogen sulphide which may be removed in known manner. Initial hydrogen sulphide may be removed before the treatment. Catalysts containing uranium, chromium and/or molybdenum together with one or more of the elements cerium, copper, antimony, bismuth, lead, and thallium and uranium with copper or uranium with cerium, are mentioned. Catalysts are also specified comprising associations of oxides of uranium with those of cerium, copper, and antimony, oxides of chromium with those of copper, cerium and thorium, and oxide of tungsten and molybdenum with those of metals of groups I-V. Specification 305,026 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of catalysts containing oxides of the metals of the sixth group with oxides of those of the eighth group. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 130,654 ; and 276,687, [Class 1 (i), Chemical processes &c.].
Patent GB-433753-A (GB)
Title: Improvements in or relating to speed-governing apparatus for internal combustion engines operating with liquid fuel injection
IPC: F02D1/00
Filed: 1935-01-28
Abstract: 433,753. Speed governors. BOSCH AKT.-GES., R. 4, Militarstrasse, Stuttgart, Germany. Jan. 28, 1935, No. 2702. Convention date, Jan. 29, 1934. Addition to 411,062, [Group XXVII]. [Class 57] A modification of the speed regulating apparatus for injection internal-combustion engines described in the parent Specification wherein the stop 19 engaging the diaphragm 9 is loaded by a spring 18 having a movable abutment positioned by a cam 23 connected to the throttle valve 13. The compression of the spring 18 is reduced as the throttle valve 13 is opened. Instead of employing a cam 23, a nut and screwed spindle arrangement may be employed for adjusting the spring abutment.
Patent GB-607158-A (GB)
Title: Improvements in or relating to manually propelled boats
IPC: B63H16/02
Filed: 1946-01-28
Abstract: 607,158. Rowing boats. MITCHELL, F. G. Jan. 28, 1946, No. 2707. [Class 114] In a rowing boat having a fixed seat 12, a sliding gear comprises an outrigger movable along the side of the boat, a stretcher slidable in the fore-and-aft direction of the boat, and connecting means operatively connecting the outrigger with the stretcher'for causing them to travel in unison. The outrigger has arms 18, 20 connected by members 22, 24 to the stretcher 16. The outrigger and stretcher move together, the former along the channel 28 at the gunwale and the latter along the channel 32 at the keelson. The invention is also shown and described as embodied in a boat for four oarsmen.
Patent GB-1521531-A (GB)
Title: Backings coated with polyarylene sulphide resins
IPC: C08L81/02
Filed: 1975-01-22
Abstract: 1521531 Polyarylene sulphide coatings GLACIER METAL CO Ltd 21 Jan 1976 [22 Jan 1975] 2750/75 Heading B2E A substrate is coated with a polyarylene sulphide polymer by mixing the polyarylene sulphide with a base comprising a metal from Group I or Group II of the Periodic Table, or a compound capable of producing such a base, and applying the mixture to the substrate and curing. Preferably, the substrate is inorganic. The base may be a hydroxide or carbonate of the metals of the specified groups and preferably is present in amount 1 to 10% by weight of the polyphenylene sulphide. The coating may be applied by fluidised bed processes.